Portal 2 achievements
911
(510)

Portal 2

4.6 from 330 votes

There are a maximum of 51 Portal 2 achievements worth 911

7,994 tracked gamers have this game, 494 have completed it (6.18%)

Achievement Details

You Saved Science in Portal 2

You Saved Science17

Complete all test chambers in all courses of co-op

  • Unlocked by 2,777 tracked gamers (35% - TSA Ratio = 1.69) 7,994  
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